Variable `treename` is overwritten in the for loop and thus changes the...

Variable `treename` is overwritten in the for loop and thus changes the provided `input_tree` name for the second and following files.
Only affect cases when more than one file in provided in `files`.

PIDCalib/PIDPerfScripts/scripts/python/PIDGenUser/Examples/Lb2Lcpi/Lb2Lcpi_pidgen.py

@@ -96,7 +96,6 @@ rand_string = ''.join(random.choice(string.ascii_uppercase + string.digits) for
 temp_file_prefix = temp_folder + '/' + rand_string  # prefix temp files with folder and unique ID
 
 output_tree = input_tree.split("/")[-1]
-treename = input_tree
 
 for input_file, output_file, dataset in files :
   tmpinfile = input_file
@@ -113,7 +112,7 @@ for input_file, output_file, dataset in files :
         print('Specify either ETA or P branch name per track')
         sys.exit(1)
       command += " -n %s" % ntrvar
-      command += " -t %s" % treename
+      command += " -t %s" % input_tree
       command += " -p %s_%s_corr" % (track, var)
       command += " -c %s" % config
       command += " -d %s" % dataset
@@ -122,7 +121,6 @@ for input_file, output_file, dataset in files :
       if seed :
         command += " -s %d" % seed
 
-      treename = output_tree
       tmpinfile = tmpoutfile
       if 'tmp1' in tmpoutfile:
         tmpoutfile = tmpoutfile.replace('tmp1', 'tmp2')